Global profiling of various metabolites in platycodon grandiflorum by UPLC-QTOF/MS

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Abstract

© 2015 by the authors; licensee MDPI, Basel, Switzerland.In this study, a method of metabolite profiling based on UPLC-QTOF/MS was developed to analyze Platycodon grandiflorum. In the optimal UPLC, various metabolites, including major platycosides, were separated well in 15 min. The metabolite extraction protocols were also optimized by selecting a solvent for use in the study, the ratio of solvent to sample and sonication time. This method was used to profile two different parts of P. grandiflorum, i.e., the roots of P. grandiflorum (PR) and the stems and leaves of P. grandiflorum (PS), in the positive and negative ion modes. As a result, PR and PS showed qualitatively and quantitatively different metabolite profiles. Furthermore, their metabolite compositions differed according to individual plant samples. These results indicate that the UPLC-QTOF/MS-based profiling method is a good tool to analyze various metabolites in P. grandiflorum. This metabolomics approach can also be applied to evaluate the overall quality of P. grandiflorum, as well as to discriminate the cultivars for the medicinal plant industry.

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Lee, J. W., Ji, S. H., Kim, G. S., Song, K. S., Um, Y., Kim, O. T., … Lee, D. Y. (2015, November 9). Global profiling of various metabolites in platycodon grandiflorum by UPLC-QTOF/MS. International Journal of Molecular Sciences. MDPI AG. https://doi.org/10.3390/ijms161125993

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